| Literature DB >> 3918756 |
P Critchley, N Langdon, J D Parkes, N P Quinn, J S Shindler, C D Marsden.
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Year: 1985 PMID: 3918756 PMCID: PMC1418525 DOI: 10.1136/bmj.290.6470.788-b
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623